Palaeoperidinium deflandrei subsp. larjakiense

"subsp. larjakiense" (Vozzhennikova, 1967, p.71-72, pl.16, figs.1a-b,2a-b) Lentin and Williams, 1973, p.105.  Holotype: Vozzhennikova, 1967, pl.16, figs.1a-b; Lentin and Vozzhennikova, 1990, text-fig.32; lost according to Lentin and Vozzhennikova (1990, p.61).  Originally Peridinium conicum var. larjakiense (Appendix B), subsequently Palaeoperidinium deflandrei subsp. larjakiense, thirdly Cooksoniella larjakiensis, fourthly Palaeoperidinium larjakiense.  Taxonomic senior synonym (at specific rank): Peridinium (now Palaeoperidinium) pyrophorum, according to Lentin and Vozzhennikova (1990, p.61).  Age: Paleocene. Parent: Palaeoperidinium deflandrei